Edexcel IGCSE Physics · Spec 5.13-5.14
The Gas Laws
The gas laws and the link between pressure, volume and temperature.
Physics revision video
The Gas Laws
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Spec 5.13-5.14
What you need to know
- State Boyle's law for a fixed mass of gas
- Use p one V one equals p two V two
- Work through some examples
Active recall
Quick check
Answer each question before opening the answer.
How are pressure and volume related at constant temperature?
They are inversely proportional: p₁V₁ = p₂V₂ (Boyle's law).
Why must temperature be in kelvin for gas calculations?
The gas laws depend on the absolute temperature, measured from absolute zero.
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